more over, why some times they don't impact for 1 or 2 hours before the flashing. I think everyone, who has this problem, face it only after several days, weeks or even months of using Vive and nothing was changing on environment. It's very interesting case. By the way, some people in the internet wrote, that after they made more strong cooler system for they cpu, the problem was solved. But I don't know, how the CPU's temperature can connect with this problem.